EP1539401B1 - Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide - Google Patents

Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide Download PDF

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Publication number
EP1539401B1
EP1539401B1 EP03759884A EP03759884A EP1539401B1 EP 1539401 B1 EP1539401 B1 EP 1539401B1 EP 03759884 A EP03759884 A EP 03759884A EP 03759884 A EP03759884 A EP 03759884A EP 1539401 B1 EP1539401 B1 EP 1539401B1
Authority
EP
European Patent Office
Prior art keywords
plates
width
continuous casting
hot side
coolant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03759884A
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German (de)
English (en)
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EP1539401A2 (fr
Inventor
Gereon Fehlemann
Hans Streubel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
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SMS Siemag AG
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Filing date
Publication date
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP1539401A2 publication Critical patent/EP1539401A2/fr
Application granted granted Critical
Publication of EP1539401B1 publication Critical patent/EP1539401B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0408—Moulds for casting thin slabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling the moulds

Definitions

  • the invention relates to a continuous casting mold for liquid metals, in particular for liquid steel, surrounded by water boxes, the casting cross-section parallel course, opposing insert plates made of steel, and applied to the steel insert plates cartridge-like copper plates, which limit the casting cavity, and possibly to the End sides of the casting cavity inserted end plates for determining the G confusestrangdicke and / or G foolstrangbreite that close the G confusehohlraum at the end faces and with in the copper plates at the interfaces to the steel insert plates an inlet with an outlet connecting coolant channels, wherein the thickness of the copper plates between the cooling medium and the copper plate hot side is different across the width and / or height,
  • the designated continuous casting mold is from the DE 195 81 604 T1 known.
  • Such a continuous casting mold forms a so-called cassette mold.
  • the cassette mold has the cassette-like copper plates adjacent to the steel insert plates, which delimit the pouring cavity.
  • the invention has for its object to propose measures in such a cassette mold against the high temperatures in Gelloador Scotland by suitable design of the copper plates and / or the steel insert plates.
  • the stated object is achieved in that the thickness of the copper plates is different in each case between the cooling medium and the copper plate hot side across the width and / or height.
  • the hot-side temperature can be made uniform over the width of the mold and the significant drop in temperature can be reduced by the mold height below the G fauxador Kunststoffs.
  • coolant channels extend in the copper plate and at least partially in the adjacent steel insert plate. As a result, a part of the same flow velocities are ensured in the cooling channels and the other part, the production of the coolant channels in the copper plate and in the Stahlseatzpfatte is considerably simplified.
  • the improved heat dissipation in the mold level region is further enhanced by the fact that the coolant Kanafquerites is smaller in the G sleekador Maschinenwitz than in the rest of the coolant channel.
  • Another measure for reducing the hot-side temperature in the mold level region is that in the mold level region, the thickness between the coolant channel and the hot side surface of the copper plate is lower than above and below this range.
  • coolant channels extend in the copper plate and at least partially in the adjacent steel insert plate. As a result, a part of the same flow velocities in the cooling channels are ensured and the other part, the production of the coolant channels in the copper plate and in the steel insert plate is considerably simplified.
  • Another measure for reducing the hot-side temperature in the mold level region is that the thickness between the coolant channel and the hot side surface of the copper plate in the GelloLite Scheme is lower than above and below this range.
  • the temperature balance between higher and lower regions within the height of the continuous casting mold is further supported by the fact that the smaller thickness between the coolant channel and the hot side surface of the copper plate is limited to the height portion and is continuously increased in a deeper portions to a distance.
  • the arrangement of the coolant channels depends on the internal shape of the casting cavity.
  • the distance to the hot side surface is smaller in the middle region than in the edge region.
  • grooves communicating with the coolant channel are made in the copper plate with their groove depths greater than 10 mm and less than 25 mm.
  • a hopper mold is applicable and that the width section with the greatest distance of the coolant channel from the hot side surface of the copper plate is a length of 50 to 80% of the width range in the hopper.
  • an outer width region of the funnel cross section is between 50 and 80% of the broad side length "L" minus half the funnel width.
  • liquid metals in particular liquid steel
  • liquid steel are cast into casting strands of different formats and billet, billet, slab and thin-strand cross-sections.
  • opposite insert plates 2 made of steel and copper plates 3 resting in the steel insert plates 2 are fixed, e.g. tightened by means of screws 4 against the steel insert plates 2, which form a cassette.
  • the copper plates 3 define the casting cavity 5.
  • Narrow side plates are arranged, whose thickness 8 forms the G hasslestrangdicke or determine the G fauxstrangbreite by their mutual distance.
  • coolant channels 9 are incorporated at the border to the steel insert plates, which are each provided with an inlet and an outlet.
  • the thickness 10 of the copper plates 3 is different in each case between the cooling medium 11 and the copper plate hot side 3 a over the width 2 x L and / or over the height 12 of the mold.
  • the thickness 10 of the copper plate 3 kept smaller than in the deeper, larger area, so that the heat dissipation in GelloLite Scotland 13 is considerably higher than in the deeper area.
  • a lower hot-side temperature is set in the mold level region 13.
  • the coolant channels 9 in the copper plate 3 can also at least partially in the adjacent steel insert plate 2, as in Fig. 1 is indicated by the dashed line, run.
  • the copper plate 3 is kept uniformly thick and the coolant channels 9 are also uniformly deep. Accordingly, a narrower coolant channel 9 is made normal by a steel insert plate 2 lying opposite in the casting mirror 13 at a height H1 and narrower at the height H2 adjoining downward, so that the desired higher flow velocity is obtained between the copper plate 3 and the steel insert plate 2 at the height H2 of the cooling medium 11 results.
  • the coolant channel cross section 14 ( Fig. 3 ) is executed in the height H2 as a minimum thickness (A min ) and in the lower regions of the coolant channel cross-section 14 is always larger, and the lower portion of the thickness (A u ) of the copper plate 3 is always made larger.
  • the smaller thickness 10 between the coolant channel 9 and the hot side surface 3a of the copper plate 3 is limited to the height portion H2.
  • This smaller thickness 10 between the coolant channel 9 and the hot side surface 3a of the copper plate 3 is, based on the height section H2, in deeper sections continuously increased to the distance A u .
  • Fig. 4 is the copper wall thickness of a funnel mold 17 before the cooling medium and / or thedenutgeometrie (depth, width, diameter and distance) over the mold width 2 x L performed differently.
  • the hot-side temperature is additionally uniformized over the mold width 2 ⁇ L, and the substantial temperature drop below the mold level region 13 can likewise be reduced via the mold height 12.
  • a distance D1, D3 of the hot side surface 3a of the copper plate 3 is kept constant in equal width sections L1, L3. Further, in equal width sections L1, L2, L3, starting from the width sections L1, L3 having the distances D1, D3, a distance D2 in the width section L2 to the central area is reduced to a level D2. With the cooling channel 9 in connection grooves 15 are executed in the copper plate 3 with their groove depths greater than 10 mm and less than 25 mm.
  • the width portion L3 having the greater distance D3 of the coolant channel 9 from the hot side surface 3a of the copper plate 3 is 50-80% of the length range L in the funnel 17a.
  • An outer width region L1 of the copper plates 3 is between 50-80% of half the broad side length L minus half the funnel width L3.
  • the grooves 15 are in the width section L1 with the distances D Cu1 and the groove depth D PI1 equal to L2 and D Cu2 + D PI2 and equal to L3 and D Cu3 + D PI3 .
  • the total groove depth is less than 20 mm and greater than 10 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Lubricants (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (9)

  1. Lingotière de coulée continue pour métaux liquides, en particulier pour acier liquide, comprenant
    - des plaques d'insert (2) en acier, entourées de boîtes à eau (1), formant la section de coulée avec tracé parallèle, mutuellement opposées ;
    - des plaques de cuivre (3) analogues à des cassettes, appliquées contre les plaques d'insert en acier (2), qui délimitent la cavité de coulée (5), telles que les plaques de cuivre (3) sont réalisées avec des faces latérales chaudes (3a) tournées vers le métal liquide et dans laquelle une épaisseur (10) indique la distance depuis les surfaces latérales chaudes (3a) jusqu'à un fluide de refroidissement (11) ;
    - des canaux pour agent de refroidissement (9), qui sont réalisés dans les surfaces limites, opposées aux faces latérales chaudes (3a), des plaques en cuivre (3) vers les plaques d'insert en acier (2) et relient une entrée et une sortie pour l'agent de refroidissement (11) ;
    - des plaques terminales (7) introduites au niveau des côtés frontaux de la cavité de coulée (5) pour immobiliser l'épaisseur du barreau coulé et/ou la largeur du barreau coulé, qui referme la cavité de coulée (5) au niveau des côtés frontaux (6) ;
    dans laquelle l'épaisseur (10) des plaques en cuivre (3) respectives entre l'agent de refroidissement (11) et le côté chaud des plaques en cuivre (3a) est différente sur la largeur (2xL) et/ou sur la hauteur (12) de la lingotière, et
    dans laquelle dans la zone du niveau de coulée (13) et sur une longueur H2 la section (14) du canal d'agent de refroidissement est inférieure à ce qu'elle est au-dessus et au-dessous de la zone du niveau de coulée (13).
  2. Lingotière de coulée continue selon la revendication 1, caractérisée en ce que les canaux pour agent de refroidissement (9) s'étendent dans la plaque en cuivre (3) et au moins partiellement dans la plaque d'insert en acier (2) adjacente.
  3. Lingotière de coulée continue selon l'une des revendications 1 et 2,
    caractérisée en ce que, dans la zone du niveau de coulée (13), l'épaisseur (10) entre le canal pour agent de refroidissement (9) et la face latérale chaude (3a) de la plaque en cuivre (3) est inférieure à ce qu'elle est au-dessus et au-dessous de cette zone.
  4. Lingotière de coulée continue selon l'une des revendications 1 à 3,
    caractérisée en ce que la réduction d'épaisseur (10) entre le canal pour agent de refroidissement (9) et la face latérale chaude (3a) de la plaque en cuivre est limitée au tronçon en hauteur (H2), et est agrandie en continu jusqu'à une distance (A0) dans des tronçons plus profonds au-dessous du tronçon en hauteur (H2) du niveau de coulée.
  5. Lingotière de coulée continue selon l'une des revendications 1 à 4,
    caractérisée en ce qu'une distance (D1 ; D3) des faces latérales chaudes (3a) de la plaque en cuivre (3) est constante dans des tronçons en hauteur identiques (L1 ; L3).
  6. Lingotière de coulée continue selon l'une des revendications 1 à 5,
    caractérisée en ce que, dans le tronçon en largeur (L2) dans la région d'une trémie (17a), la distance vis-à-vis de la face latérale chaude (3a) est inférieure dans la zone médiane à celle dans la zone de bordure.
  7. Lingotière de coulée continue selon l'une des revendications 1 à 6,
    caractérisée en ce que des gorges (15) en communication avec le canal pour agent de refroidissement (9) sont ménagées dans la plaque en cuivre (3) avec des profondeurs (16) supérieures à 10 mm et inférieures à 20 mm.
  8. Lingotière de coulée continue selon l'une des revendications 1 à 7,
    caractérisée en ce qu'une lingotière (17) en forme de trémie peut être utilisée, et en ce que le tronçon en largeur (L3) avec la plus grande distance (D3) du canal pour agent de refroidissement (9) depuis la face latérale chaude (3a) de la plaque en cuivre (3) a une longueur de 50 à 80 % de la région large (L) dans la trémie (17a).
  9. Lingotière de coulée continue selon la revendication 7,
    caractérisée en ce qu'une zone large (L1), située à l'extérieur, des plaques en cuivre (3) est comprise entre 50 et 80 % de la moitié de la longueur des côtés larges (L), diminuée de la moitié de la largeur de trémie (L3).
EP03759884A 2002-06-13 2003-03-25 Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide Expired - Lifetime EP1539401B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10226214A DE10226214A1 (de) 2002-06-13 2002-06-13 Stranggießkokille für flüssige Metalle, insbesondere für flüssigen Stahl
DE10226214 2002-06-13
PCT/EP2003/003081 WO2003106073A2 (fr) 2002-06-13 2003-03-25 Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide

Publications (2)

Publication Number Publication Date
EP1539401A2 EP1539401A2 (fr) 2005-06-15
EP1539401B1 true EP1539401B1 (fr) 2010-05-26

Family

ID=29594457

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03759884A Expired - Lifetime EP1539401B1 (fr) 2002-06-13 2003-03-25 Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide

Country Status (7)

Country Link
US (1) US7363958B2 (fr)
EP (1) EP1539401B1 (fr)
AT (1) ATE468933T1 (fr)
AU (1) AU2003226707A1 (fr)
DE (2) DE10226214A1 (fr)
ES (1) ES2345610T3 (fr)
WO (1) WO2003106073A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006036708A1 (de) * 2006-08-05 2008-02-07 Sms Demag Ag Stranggießkokille für flüssige Metalle, insbesondere für flüssige Stahlwerkstoffe
US8251127B2 (en) 2008-06-24 2012-08-28 Nucor Corporation Strip casting apparatus with independent delivery nozzle and side dam actuators
EP2321075B1 (fr) * 2008-08-06 2018-07-11 SMS group GmbH Lingotière de coulée continue pour métal en fusion, en particulier pour acier en fusion
IT201600116859A1 (it) * 2016-11-18 2018-05-18 Danieli Off Mecc Dispositivo di colata continua per bramme sottili

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125786A (en) * 1964-03-24 Construction of moolbs used for the continuous
US3978910A (en) * 1975-07-07 1976-09-07 Gladwin Floyd R Mold plate cooling system
DE3411359A1 (de) * 1984-03-28 1985-10-31 Mannesmann AG, 4000 Düsseldorf Stranggiesskokille fuer rund- bzw. knueppelquerschnitte, insbesondere fuer das vergiessen von fluessigem stahl
JPH03118943A (ja) * 1989-09-29 1991-05-21 Kawasaki Steel Corp 低・中炭素鋼用連鋳鋳型およびその鋳造方法
US5467810A (en) * 1994-04-01 1995-11-21 Acutus Industries Continuous metal casting mold
US5526869A (en) * 1994-09-29 1996-06-18 Gladwin Corporation Mold for continuous casting system
PL183716B1 (pl) * 1996-05-13 2002-07-31 Km Europa Metal Ag Krystalizator chłodzony cieczą
US5927378A (en) * 1997-03-19 1999-07-27 Ag Industries, Inc. Continuous casting mold and method
DE19802809A1 (de) * 1998-01-27 1999-07-29 Km Europa Metal Ag Flüssigkeitsgekühlte Kokille
DE19903929A1 (de) 1999-02-01 2000-08-03 Sms Demag Ag Kokillenplatte einer Kokille mit trichterförmigem Eingießbereich zum Stranggießen von Metall
JP3420966B2 (ja) * 1999-03-03 2003-06-30 新日本製鐵株式会社 溶融金属の連続鋳造装置
DE10056910A1 (de) * 2000-11-16 2002-05-29 Sms Demag Ag Knüppel- und Blockkokille mit partiell geregelter Wärmeabfuhr über Kokillenumfang und Kokillenhöhe

Also Published As

Publication number Publication date
DE50312745D1 (de) 2010-07-08
DE10226214A1 (de) 2003-12-24
WO2003106073A2 (fr) 2003-12-24
US20060102313A1 (en) 2006-05-18
WO2003106073A3 (fr) 2004-04-08
ATE468933T1 (de) 2010-06-15
EP1539401A2 (fr) 2005-06-15
AU2003226707A8 (en) 2003-12-31
US7363958B2 (en) 2008-04-29
ES2345610T3 (es) 2010-09-28
AU2003226707A1 (en) 2003-12-31

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